Cooling motors.



` PATIazNILED OOT. z5, 1904.

4J. T. OAPPELL. COOLING MOTORS.

APPLICATION FILED JULY 1, 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

gwventoz 1.7 'Cgp ZZ Wittmann SO 73M/ i gm.,

Qa/LW @Renaud No. 773,245. l PATBNTED OCT. 25, 1904. J. T. GAPPBLL. ICOOLING. MoToRs.

APPLIOATIUN FILED JULY "l, 1002.

N0 MODEL. RSEBBTS--BHBET 2.

@Mamba T290/Vall,

ivo. 773,245.

UNITED STATES.

Patented October 25, 1904.

PATENT OEEicE.

COOLING MOTORS.

SPECIFICATION forming part of Letters PatentNO- 773,245, dated October 25, 1904. i

Application filed July 7, 1902. Serial No. 114,689. (No model.)

To all whom, it may concern,.-

Be it known that I, JOHN T. CAPPELL, a citizen of the United States, residing in Vincennes, in the county of Knox and State of Indiana,- have invented a new and valuable Improvement in Cooling Motor-Cylinders, of which the following is a full, clear, and exact description of the construction and operation of the same.

My invention relates to improvements in cooling motor-cylinders, and especially to that type using a jacketfor surrounding the cylinder; and the object thereof is to provide means whereby the mixture of air and gasolene `.vhich is drawn into the explosion-chamber cools the cylinder before entering, thus avoiding accidental explosion.

lith this object in view the invention consists in the novel features and combination of parts, which will be more fully described hereinafter and pointed out in the appended claims.

In the drawings, Figure l is a vertical section. Fig. 2 is a horizontal section on line m m of Fig. l, and Fig. 3 is a horizontal section on line y y of Fig. l.

Referring more especially to the drawings, l designates a cylinder, 2 the piston, and 3 the exhaust-valve, which may be operated by any suitable means, (not shown,) these parts being of the construction usually employed, and as my invention relates solely to the cooling of the engine I have not shown any parts other than those which show the application of my invention.

In carrying out my inventionV the cylinder is surrounded in parallel lines by a seriesA of ribs 4, provided with alternating openings 5 on either side, which cause the gasolene, which enters at 6, to traverse a circuitous path to the space between the jacket and cylinder at 6 and coming in contact with air causes the gasolene to expand, thereby reducing its temperature. The consequent cooling is causedas follows: Whenthe piston makes its outward stroke, a partial vacuum is produced in the space between the cylinder and casing, causing less pressure than that which the gasolene is subjected to before entering, and thus expanding it and causing cooling. This cool mixture thenpasses between the ribs 4 through the openings 5, causing it to traverse a circuitous course until the entire cylinder-surface is cooled. After leaving the space between the cylinder and casing it passes up and enters openings 14, then through holes cooling the exhaust-valve 3, thence through openings 18 and l5 in ribs 12 to the port 17, leading to the explosion-chamber, where it is exploded.

Y Having thus described my invention, what I claim as new, and 'desire to secure by Letters Patent, is"- l. In a cooling device for explosion-englnes, the combination with a cylinder, a head for said cylinder provided with apertures, a cascontrolling the communication between thel cylinder-head and the cylinder.

2. Inacoolingdevice for explosion-engines, the combination with a cylinder, a head for said cylinder provided with apertures, a casing surrounding said cylinder, and an inlet- Vport to said casing, of plates secured to the topand'bottom of said casing, ribs having alter- Anatingopenings surrounding said cylinder,

cross-ribs between the top plate and the head provided with openings adapted to cause circulation of the charge to be exploded, and a valve controlling the communication between the cylinder-head andthe cylinder.

In testimony whereof I aix my signature in i thepresence ofwitnesses. Y

` i J. T. GAPPELL Witnesses:

WILLIAM F. HINDs, Jr., KATE PENINGTON. 

